BG 18.22-24
While that which clingeth to each one thing as if it were the whole, without reason, without grasping the reality, narrow, that is declared to be dark. An action which is ordained, done by one undesirous of fruit, devoid of attachment, without love or hate, that is called pure. But that action that is done by one longing for desires, or again with egoism, or with much effort, that is declared to be passionate.